Thing is, people can get away with it in BF or Titanfall or other “team” shooters because really, the only true teamwork aspect to those games tends to be that you’re on the same side. Other than that, you can (and people do) operate largely independent from your team.
You cannot do this in L4D. Literally, you cannot. You will die. And lose.
You cannot do this in Payday. Special cops will kill you and you will lose.
You will not be able to do this in Evolve. Even if you don’t get pounced, you will either lack the firepower, the utility, or the staying power (life) to fight the monster.
You might get the occasional jerk who wants to ruin your experience sure, but even in L4D the vast majority of pub games were pretty decent in at least staying together and playing the game as a team. It was required to win. The same happens in League of Legends. Stats and the simple fact that you can’t 1 v 5, even if pretty fed, means teamwork is required there. People will do what they need to to win, and Evolve requires teamwork to win. So unless you get a troll, I don’t think it will be a huge problem.